Fix TypeError seen in older vim versions
Fix TypeError seen in older vim versions


bartvm/powerline,S0lll0s/powerline,IvanAli/powerline,xfumihiro/powerline,lukw00/powerline,bartvm/powerline,cyrixhero/powerline,Liangjianghao/powerline,s0undt3ch/powerline,keelerm84/powerline,dragon788/powerline,bartvm/powerline,magus424/powerline,Luffin/powerline,Liangjianghao/powerline,bezhermoso/powerline,EricSB/powerline,darac/powerline,xxxhycl2010/powerline,IvanAli/powerline,bezhermoso/powerline,QuLogic/powerline,s0undt3ch/powerline,seanfisk/powerline,prvnkumar/powerline,Luffin/powerline,russellb/powerline,wfscheper/powerline,DoctorJellyface/powerline,xxxhycl2010/powerline,darac/powerline,DoctorJellyface/powerline,areteix/powerline,firebitsbr/powerline,seanfisk/powerline,EricSB/powerline,blindFS/powerline,prvnkumar/powerline,dragon788/powerline,prvnkumar/powerline,junix/powerline,russellb/powerline,kenrachynski/powerline,seanfisk/powerline,junix/powerline,s0undt3ch/powerline,blindFS/powerline,lukw00/powerline,QuLogic/powerline,bezhermoso/powerline,lukw00/powerline,QuLogic/powerline,xfumihiro/powerline,darac/powerline,wfscheper/powerline,magus424/powerline,xxxhycl2010/powerline,S0lll0s/powerline,dragon788/powerline,firebitsbr/powerline,Liangjianghao/powerline,russellb/powerline,firebitsbr/powerline,wfscheper/powerline,DoctorJellyface/powerline,blindFS/powerline,magus424/powerline,junix/powerline,keelerm84/powerline,xfumihiro/powerline,kenrachynski/powerline,EricSB/powerline,areteix/powerline,IvanAli/powerline,kenrachynski/powerline,cyrixhero/powerline,S0lll0s/powerline,Luffin/powerline,cyrixhero/powerline,areteix/powerline